- Added build configurations

- Configured csprojects
- CopyLibs functionality in builder

Nerfed.Editor/Program.cs

@@ -0,0 +1,11 @@
+using Nerfed.Runtime;
+
+namespace Nerfed.Editor;
+
+internal class Program
+{
+    private static void Main(string[] args)
+    {
+        Engine.Run(args);
+    }
+}